[Java3Djp:00525] タートルグラフィック・ライブラリー(3/3)

[ENDO Yasuyuki <eyasuyuki@xxxxxxxxxx>]

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    http://www.dns-ml.co.jp

初心者でも簡単開設・運用が可能です！
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テスト用のAppletです。

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TurtleTest.java
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//  Turtle graphics library
//  TurtleTest.java
//  copyright(c)1999 ENDO Yasuyuki

package org.javaopen.j3d;

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.applet.MainFrame;

public class TurtleTest extends Applet {
  private SimpleUniverse univ = null;
  private Turtle turtle = null;
  public Turtle getTurtle() { return turtle; }

  public TurtleTest() {
    Canvas3D canvas = new Canvas3D(null);
    canvas.addKeyListener(new MyKeyAdapter(this));
    this.setLayout(new BorderLayout());
    this.add("Center", canvas);
    this.univ = new SimpleUniverse(canvas);
    this.univ.getViewer().getView().setBackClipDistance(2000.0);
      System.out.println("backclip=" + univ.getViewer().getView().getBackClipDistance());

    //this.univ.getViewingPlatform().setNominalViewingTransform();
    
    this.univ.addBranchGraph(createSceneGraph());
  }

  public BranchGroup createSceneGraph() {
    BranchGroup sceneRoot = new BranchGroup();

    sceneRoot.addChild(new ColorCube(100.0));

    this.turtle = new Turtle();
    this.turtle.addViewTransform(univ.getViewingPlatform().getViewPlatformTransform());
    this.turtle.moveUp(800.0);
    this.turtle.up( -(Math.PI / 2.0));

      Point3d tp = turtle.getPoint();
      System.out.println("x=" + tp.x + ", y=" + tp.y + ", z=" + tp.z);
      Vector3d v3d = new Vector3d();
      Matrix4d m4d = new Matrix4d();
      Transform3D t3d = new Transform3D();
      this.univ.getViewingPlatform().getViewPlatformTransform().getTransform(t3d);
      t3d.get(v3d);
      System.out.println("x=" + v3d.x + ", y=" + v3d.y + ", z=" + v3d.z);
      t3d.get(m4d);
      System.out.println("m00=" + m4d.m00 + ", m01=" + m4d.m01 + ", m02=" + m4d.m02 + ", m03=" + m4d.m03);
      System.out.println("m10=" + m4d.m10 + ", m11=" + m4d.m11 + ", m12=" + m4d.m12 + ", m13=" + m4d.m13);
      System.out.println("m20=" + m4d.m20 + ", m21=" + m4d.m21 + ", m22=" + m4d.m22 + ", m23=" + m4d.m23);
      System.out.println("m30=" + m4d.m30 + ", m31=" + m4d.m31 + ", m32=" + m4d.m32 + ", m33=" + m4d.m33);

    return sceneRoot;
  }

  public static void main(String[] args) {
    TurtleTest applet = new TurtleTest();
    Frame frame = new MainFrame(applet, 500, 500);
  }
}

class MyKeyAdapter implements KeyListener { 
  private TurtleTest applet = null;
  public MyKeyAdapter(TurtleTest applet) { this.applet = applet; }
    public void keyPressed( KeyEvent e ){
      int key = e.getKeyCode();
      if (e.isControlDown()) {
        switch (key) {
          case KeyEvent.VK_UP:
            applet.getTurtle().up(Math.PI/60.0);
            break;
          case KeyEvent.VK_DOWN:
            applet.getTurtle().up(-(Math.PI/60.0));
            break;
          case KeyEvent.VK_RIGHT:
            applet.getTurtle().rolleRight(Math.PI/60.0);
            break;
          case KeyEvent.VK_LEFT:
            applet.getTurtle().rolleRight(-(Math.PI/60.0));
            break;
        }
      } else if (e.isShiftDown()) {
        switch (key) {
          case KeyEvent.VK_UP:
            applet.getTurtle().moveUp(20.0);
            break;
          case KeyEvent.VK_DOWN:
            applet.getTurtle().moveUp(-20.0);
            break;
          case KeyEvent.VK_RIGHT:
            applet.getTurtle().moveRight(20.0);
            break;
          case KeyEvent.VK_LEFT:
            applet.getTurtle().moveRight(-20.0);
            break;
        }
      } else {
        switch (key) {
          case KeyEvent.VK_UP:
            applet.getTurtle().forward(20.0);
            break;
          case KeyEvent.VK_DOWN:
            applet.getTurtle().forward(-20.0);
            break;
          case KeyEvent.VK_RIGHT:
            applet.getTurtle().turnRight(Math.PI/60.0);
            break;
          case KeyEvent.VK_LEFT:
            applet.getTurtle().turnRight(-(Math.PI/60.0));
            break;
        }
      }
    }
  public void keyReleased( KeyEvent e ){}
  public void keyTyped( KeyEvent e ){}
}
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-- 
えんどう やすゆき <yasuyuki@xxxxxxxxxx>
http://www.javaopen.org/jfriends/ (Java互助会ホームページ)